George Kyparisis owns a company that manufactures sailboats. Actual demand for George's sailboats during each of the past four seasons was as follows:

Year

George has forecasted that annual demand for his sailboats in year $5$ will equal $6,000$ sailboats.

Based on the given data and using the seasonal model, the demand level for George's sailboats in the spring of year $5$ will be sailboats $($enter your final answer as a whole

number and round all intermediate calculations to two decimal places$).$